1
Case opening
Opening the watch case back.
2
Battery check
Battery check using a specific device.
3
Supply power to movement and test
4
Inspect condition of the movement
While it is still being powered by the equipment, check and, if necessary, adjust precision.
5
Battery replacement
Change the battery for a new one.
6
Seal replacement
Exchange the case back seal(s) to ensure the watch's water resistance.
7
Case closure
Closure of the case back.
8
Water resistance test
Test the water resistance of the case.